SU1463374A1 - Arrangement for weaving nets - Google Patents

Abstract

The invention relates to the production of woven metal nets and improves the quality of the nets by stabilizing the geometrical parameters of the helix. The netting device comprises a winding counting mechanism, a helix shaping mechanism including a knife and auger, and a helix cutting mechanism installed on the frame and technologically related between themselves. The screw is made in constant pitch and increases with the diameter of the hole along its axis. The knife is made with a variable cross section, varying from a round profile at one end to a flattened one at the other. 6 Il.

Description

FIG. 2

The invention relates to the processing of materials in pressure / in particular to equipment for the production of woven metal meshes, which can be used for the production of mesh conveyor belts.

The purpose of the invention is to improve the quality of the grids by stabilizing the geometric parameters of the spiral.

Figure 1 shows a device for weaving nets, obnp-ni view of the weld in figure 2 - node I in figure 1; on. Fig.3 section of the AL-jia Fig .. 2; figure 4 - section bb in figure 2; Fig, 5 - section 1b-B on. 2; on. fig.b - section GG in figure 2,

The netting device contains C1 aninu 1 ,. in which mechanisms of 2 counting of coils, mechanism 3 forming spirals, mechanism 4 cutting spirals and mechanism 5 stepping movement are installed. The blank for the grids is wire b, molded in bay 7 and trimmed in the right-hand piece 8, also used to tension it. The mechanism 3 of the shape-forming design of the spiral consists of a fixed body 9, an auger. 10 and the knife 11. The screw 10 is installed in the housing 9 with the possibility of rotation and fic Gsi. and is designed as a sleeve with

through screw groove a, having a constant pitch. The hole in the auger has a round shape and increases in diameter along its axis, for example, it is made tapered. In the tapered auger is installed with a possible

By rotating from a tapering HOJif counting mechanism. The knife from one end has a circular shape in cross section (Fig. 4), gradually passing into an intermediate shape of a cross section.

(figure 5) 5 and then in the form of a cross section of the internal profile of the coil of a spiral

(fig.b).

Fla knife has a groove b for the initial wire stocking.

The device for 1 mesh grid works as follows. The end of the wire b from the bay 7 is drawn by the correct adaptation of the 8 stocks into the canal: knife 6 of the knife. The mechanism for counting the turns, transmitting the rotation from the drive to the knife to the mechanism of forming a spiral, turns on. Wire is set to

0

15

20

35 40

45

the knife and deforms into a spiral with round turns, which, when moving along the knife, are gradually getting closer. and more, stretched to the profile of the coils flat. helix, and descends from the knife. After winding the helix to the required length, the helix cutting mechanism cuts the coiled helix, and with the help of the stepping mechanism (or manually with the help of the worker) the helix is shifted by one step. When the next helix is squeezed, the latter, when rotated, is woven into the stationary previously spun helix, etc., a continuous mesh of mesh 12 is formed. in one direction or another, and then fixed again. At the same time, the point of entry of the wire on the knife is also displaced in some 25 or side along the cone. When the wire entry position is shifted, for example, to the side with a smaller knife cross section, the initial turns of the helix also have a smaller diameter and at the other end of the knife they experience large tensile stresses. It can be achieved that these expansion stresses exceed the residual bending stresses when winding the wire on the knife. Then, after the helix has been removed from the knife, the bending will not twist around the axis, the helixity of the helix will increase, i.e. the quality of the grid will increase, the defect will decrease.

The advantage of the proposed device is to improve the quality of the grids by stabilizing the winding of the wire on the knife and making the spirals flat.

Formula

and

3 o b ete n i

A device for weaving grids, comprising a mechanism for counting turns, a mechanism for shaping a spiral, including a knife and a screw, and a mechanism for cutting a spiral installed on a bed during the technological process, which, in order to improve the quality of grids by stabilizing the geometric parameters of the spiral, a screw with a diameter of the holes are along its axis in the direction of the spiral movement, and the knife is made with a variable axis of the axis from the circular profile at the point of winding the wire to the flattened profile at the place of the spiral exit.

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FIG. eight

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Claims (1)

Claim A device for weaving nets, comprising a coil counting mechanism installed on the bed during the process, a spiral forming mechanism including a knife and a screw, and a spiral cutting mechanism, characterized in that, in order to improve the quality of the nets by stabilizing the geometric parameters of the spiral, the screw is filled1463374 with a constant step and increasing diameter of the hole along its axis in the direction of spiral movement, and the knife is made with a variable section profile, changing along its axis from a circular profile in the month e of winding wire to a flattened profile in mestesskhoda spiral. mr FIG. 6